deltakit.core.decoding_graphs.NXDecodingMultiGraph.to_parity_check_matrix

NXDecodingMultiGraph.to_parity_check_matrix() → ndarray[tuple[Any, ...], dtype[uint8]]

Convert the hypergraph to a parity check matrix of size (len(nodes), len(edges)). Each column represents an edge and the non-zero entries in that column represent detectors in the edge.

The nodes in the graph must be contiguous to construct the matrix.